Microlocal analysis in the dual of a Colombeau algebra: generalized wave front sets and noncharacteristic regularity

Details Microlocal analysis in the dual of a Colombeau algebra: generalized wave front sets and noncharacteristic regularity Microlocal analysis in the dual of a Colombeau algebra: generalized wave front sets and noncharacteristic regularity

2005-11-11

arxiv.org/abs/math/0511297v2

Mathematics

Analysis of PDEs

Scientific paper

We introduce different notions of wave front set for the functionals in the dual of the Colombeau algebra $\Gc(\Om)$ providing a way to measure the $\G$ and the $\Ginf$- regularity in $\LL(\Gc(\Om),\wt{\C})$. For the smaller family of functionals having a ``basic structure'' we obtain a Fourier transform-characterization for this type of generalized wave front sets and results of noncharacteristic $\G$ and $\Ginf$-regularity.

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